Try Zamzar. You can either upload a video or transfer it through your computer from the Internet. You tell it what you want it converted to, enter your email address, and click enter. Within an hour they'll email you a link to a download page, from which you can download your file. I've been using it for a couple months now. If you want the soundtrack from a video, it accepts VOB, WMV, MOV, FLV, AVI, OGG, MP4, etc. and can convert to MP3, OGG, WMA, WAV, etc.
No, I'm not a paid advertiser; I just like the system and recommend it for your use.
. The link claims it will save as MP3, WAV, and AC3. Will any of those formats work on your device? You may have to use iTunes (or equiv) to actually send it to your iPod.
you will have to look for saving a google video. some of them allow them to be downloaded to a portable device. for those, go with the ipod setting so that it downloads the mp4. from there, try the software gyromild suggested. as for how to get a video that you cant download, try googling it. i used to know how to get them from youtube, but have forgotten.
I really like the aoa audio extractor. As for putting stuff on the i pod what you have to do is save it and convert. Then go onto i tunes or whatever u use and then put it in your library and drag it in to the i pod. Or you can sync it in. Which ever you itunes thing allowes you to do.
PDF Downloads As a Pro member, you will gain access to download any Instructable in the PDF format.
You also have the ability to customize your PDF download.
No, I'm not a paid advertiser; I just like the system and recommend it for your use.
Hope this helps
Depending on your processor speed, RAM and length of audio, the extraction may take hours.